Marcel Siem romped to a three shot victory at the Trophée Hassan II but was left with an anxious wait to see if he would be making his Masters Tournament debut in a fortnight’s time.

The 32 year old German overcame a slow start and the threat of Finland’s Mikko Ilonen to register a third European Tour victory.

Siem needs to move into the top 50 on The Official World Golf Ranking tonight to receive an invite to Augusta National but will have to wait and see how the likes of Henrik Stenson, Russell Henley and Charles Howell III fair at the Shell Houston Open.

“That will be unbelievable,” Siem said when asked what it would mean to grab a ticket to Georgia.

“It’s been my dream since I was a kid so if that comes true it will be unbelievable. It would be wonderful to play the Masters.

“I just want to be on that ground. I’m not going to cry but it would be very emotional. I remember as a kid watching Bernhard Langer winning it. I also loved Greg Norman and remember how unlucky he was there.

“It just looks an amazing; a hardcore golf course that you need to hit all the shots: left to right, right to left, high and low. You need to shape it a lot and that will suit me. I just hope so much that I have done enough to make it.”

The Open de France winner started the day four clear but bogeyed the first and was caught when Ilonen had a hat-trick of gains from the second.

Siem responded with birdies at the fifth and seventh, the latter courtesy of a brilliant approach to three feet, but Ilonen – who recorded both his European Tour victories back in 2007 – matched the latter to remain within touching distance.

The gap was back to two when Ilonen bogeyed the long tenth - Siem had his own problems around the green there but escaped with a par.

The tournament turned decisively in the German’s favour when he birdied the 11th from ten feet as Ilonen found sand from the tee at the short 12th, could only splash out into rough, chipped four feet past and missed the return putt.

Siem had a two-putt birdie at 15 and could even afford a couple of errant shots over the closing holes as he signed for a two under par 70 and 17 under par total.

Ilonen, who overcame a bout of food poisoning overnight, recovered from his mid-round slump with a pair of closing birdies to tie with England’s 2011 winner David Horsey in second on 14 under.

“I’m super happy; really proud that I stayed that calm,” added Siem, who took some advice from the King of German golf prior to the final round. “There was a lot of pressure – Mikko had a great start again – so I’m really happy that I scrambled well and came back nicely.

“I’ve never been in that situation so I spoke to Bernhard [Langer] last night to see if he could give me some advice on how to cope with being four shots in the lead, so thanks Bernhard!”